/*
 * Sonatype Nexus (TM) Open Source Version
 * Copyright (c) 2008-present Sonatype, Inc.
 * All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
 *
 * This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
 * which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
 *
 * Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
 * of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
 * Eclipse Foundation. All other trademarks are the property of their respective owners.
 */
package org.sonatype.nexus.selector;

import java.util.ArrayList;
import java.util.List;

/**
 * A builder for building a {@link VariableSource} by adding any number
 * of {@link VariableResolver}'s.
 *
 * @since 3.0
 */
public class VariableSourceBuilder
{
  private List<VariableResolver> resolvers = new ArrayList<>();

  public VariableSourceBuilder addResolver(final VariableResolver resolver) {
    resolvers.add(resolver);
    return this;
  }

  /**
   * Build the {@link VariableSource}.
   *
   * @return immutable variable source
   */
  public VariableSource build() {
    return new VariableSource(resolvers);
  }
}
